belajar.xls

posogravitasi rata2

1/2" (15mm)Aluminium 0 3/4" (20mm)

Draw Brass/ copper 4 1" ( 25 mm)PVC,Plastic 5 1 1/4" ( 32mm )Fiber Glass 10 1 1/2"( 40 mm)

Stainless steel 15 2" ( 50 mm)Steel Comersial pipe 20 2 1/2" ( 65 mm )Weld steel/ Cast iron 25 3" ( 80 mm)

Galvanized steel 30 3 1/2" ( 90 mm)New cast iron 35 4" ( 100 mm)

Galvanized iron 40 5" ( 125 mm )6" ( 150 mm)8" ( 200 mm)10" (250 mm)

0 12" ( 300 mm)1 ELBOW 90 SR 14" ( 350 mm)2 ELBOW 90 LR 16" ( 400 mm )3 ELBOW 45 18" ( 450 mm)4 ELBOW 90 MITRE 20" ( 500 mm )5 ELBOW 45 MITRE 24" ( 600 mm )6 GATE VALVE 26" ( 650 mm )7 GLOBE VALVE 28" ( 700 mm )8 GLOBE VALVE ANGLED 30" ( 750 mm )9 PLUG VALVE SSTRAIGHTWAY

10 BUTTERFLAY VALVE11 BALL VALVE FULL BORE12 BALL VALVE REDUCE BORE13 LIFT CEK VALVE14 LIFT CEK VALVE ANGLED15 SWING CEK VALVE16 WAFER CEK VALVE17 FOOD VALVE WITH STRAINER18 HIGED FOOT VALVE WITH STRAINER19 STRAINER 20 TROUGHT TEE21 BRANCEH TEE22 PIPE EXIT CONTAINER23 OPEN PIPE EXIT24 PIPE ENTRY PROJECTING

25 PIPE ENTRY SHARP26 REDUCER27 -

PIPE SCH 5SPIPE SCH 10SPIPE SCH 40 STDPIPE SCH 80 XS

DESIGN & CALCULATION Drawing No LH21-XXX-XX

COOLING WATER SUPPLY SYSTEM Job No. X1

Date: 22-Nov-13

PROJECT Prepared: ANS Sign :

ENGINEERING DEPARTEMENT POSO 1 ( 4X 35 MW) Checked : AQQ Sign :

A DESIGN REQUIREMENT

No. System Water Consumption

a Thrust Bearing Cooler 75 0.0208b Upper Guide Bearing Cooler 35 0.0097c Air Cooler 415 0.1153d Lower Guide Bearing Cooler 40 0.0111e Turbine Guide Bearing Cooler 9 0.0025f Shaft Seal Lubricating Cooler 4.8 0.0013

Total of Water Consumption 1 Unit 578.8 0.1608

- Total of unit = 4 Unit

- Total Water Consumption = 0.643B GENERAL DATA

1 Fluid properties- Fluid = Water

- Temperature of fluid = 25 °C2 Pipe properties

- Material = Cast Iron, seamless pipe (A106 Gr.B)- Nominal roughness (ε) = 0.000045 m = 0.045 mm

3 Local Gravity (g) = 9.779

C CALCULATION OF PIPING SUPPLY FROM HEAD TANK

1 Head tank (design)

- Capacity = 0.643111111111 2315.2- Lasting time (t) = 0.45 Hours = 1620 s

- Volume of head tank (estimation) = 1041.84

- Voluem of head tank (applied) ≈ 1355 ( minimum required )- Elevation of water level in head tank to cooling water inlet (estimation)

Based on minimum pressure → 2 bar = 22.2 m H2OBased on maximum pressure → 4 bar = 44.4 m H2O

- So, Elevation of water level in head tank to cooling water inlet = 44.4 m H2O

2 Dimension of cooling supply pipe

- Total of water consumption = 0.643- Velocity of flow (V') = 2.4 m/s

- Cross-Sect. Area (A') = 0.2680

- Diameter of pipe supply (D') = 0.58 m

- Applied nominal diameter = 0.57 m = 574.60 mm= 24" ( 600 mm )

- Applied Velocity of flow discharge = 2.48 m/s

3 Thickness of Pipe- Material of Pipe = Cast Iron, seamless pipe (A106 Gr.B)

- Pressure Design Minimum Thickness = 3.76 mm 0.07032460.5

- Internal design pressure (static head) = 400000 Pa = 400 kPa- Internal design pressure (water hammer condition) (P) = 600 kPa

- Outside diameter of the pipe, in (mm) = 610 mm- Maximum allowable stress in material (SE) = 35 ksi = 241292.62325 kPa- Additional thickness (A) = 3 mm

(m3/h) (m3/s)

(m3/s)

(Tfluid)

m/s2

(Qtank) m3/s m³/h

m3

m3

(Qtotal) m3/s

m2

(Dapplied)

(Vapplied)

(tpipe)

(Ps)

(Do)

P48

Input velocity

S56

table. Pipe standard

P69

Table. Pipe standard

P70

(table A-1 ASME B31.1)

- Coefficient (y) = 0.4

- So, Schedule of pipe supply = StandardThickness of pipe = 10 mm

4 Friction loss - Kinematic Velocity

= 8.9181E-07- Reynolds number (Re) = 1597924.31

- Regime of Flow = Turbulen

- Relative rougness = 7.83153498E-05- Friction Factor

From the swamee-jain = 0.012671020093

From Colebrook-white iteration

= 0.012599533563

= 0.012602297807

= 0.012602190523

= 0.012602194686

So, Friction factor = 0.012602194686

- Length of pipe (Inlet head tank - header pipe of cooling inlet) = 700 m

- Friction Loss in Discharge Pipe = 4.83 m

5 Fitting & Valve LossesNo Fitting type Quantity Total K factor

1 Pipe Entrance (Re-Entrant) 1 0.82 GATE VALVE 2 0.483 TROUGHT TEE 1 0.584 SWING CEK VALVE 1 2.35 ELBOW 90 LR 3 1.386 STRAINER 1 0.67 - 0 08 - 0 0

Total 6.14

Head loss for valve and fitting = 1.93 m

6 Total head (Htotal) = 38 m

7 Pressure to nearest cooling inlet = 3.7 bar 0.00

D CALCULATION OF PIPING SUPPLY FROM PUMP

1 Elevation of pump installation- Elevation of pump installation = EL. 452.120 m. above msl- Outlet of pump = EL. 465.120 m. above msl- Maximum water level (based on tailrace water level) = EL. 458.000 m. above msl- Minimum water level = EL. 449.450 m. above msl

2 Static Head(Hs) = 15.67 m. above msl

3 Capacity of water pump (for 1 unit turbine) = 0.1614 Dimension of pipe

- Velocity of flow discharge = 2 m/s

- Cross-Sect. Area = 0.080

- Diameter of pipe = 0.32 m

- Applied nominal diameter = 0.30 m = 303.20 mm= 12" ( 300 mm)

- Applied Velocity of flow = 2.23 m/s

(ν) m2/s

(ε/Dapplied)

(f0)

(f1)

(f2)

(f3)

(f4)

(f)

(Lsupply)

(Hf)

(Hm)

(Pmin)

(Qpump) m3/s

(V'pump)

(A'pump) m2

(D'pump)

(Dpump applied)

(Vpump applied)

P72

(table 104.1.2 (A), ASME B31.1)

I102

Based on valve & fitting installed

P121

Input Data Elevasi

P122

Insert Data Elevasi

P123

Input Data Elevasi

P124

Input Data Elevasi

P130

Input velocity

S138

table. Pipe standard

5 Friction Loss in Discharge Pipe- Kinematic Velocity

(ν) = 8.9181E-07- Reynolds number (Re) = 757064.08

- Regime of Flow = Turbulen

- Relative rougness = 0.000148416887- Friction Factor =

From the swamee-jain = 0.014458611123

From Colebrook-white iteration = 0.014380396011

= 0.014383708996

= 0.01438356817

= 0.014383574156So, friction factor = 0.014383574156

- Friction Loss For suction of pump

Length of suction pipe = 6.87 m

Friction oss = 0.05 mFor sdischarge of pump

Length of discharge pipe = 33.213 m

Friction loss (to header pipe) = 0.08 m- Total friction loss = 0.13 m

6 Head losses valve and fitting- Head losses valve and fitting (for suction pipe)

No Fitting type Quantity Total K factor 1 GATE VALVE 2 0.482 ELBOW 90 LR 2 0.923 BRANCEH TEE 2 1.484 SWING CEK VALVE 1 2.35 REDUCER 1 0.1

Total 5.28Head losses valve and fitting for suction pipe (m) 1.34

- Head losses valve and fitting for discharge pipe)No Fitting type Quantity Total K factor 1 GATE VALVE 2 0.482 SWING CEK VALVE 1 2.33 ELBOW 90 SR 4 3.484 TROUGHT TEE 2 1.165 REDUCER 1 0.16 - 0 0

Total 7.52Head losses valve and fitting for discharge pipe (m) 1.91

- Total (Head losses valve and fitting) = 3.25 m- Total Head Losses = 3.38 m

7 Net Positive Suction Head, Available (NPSHA)

- Elevation of pump installation = 2.670 m- (Hp) = 9.80 m

- Static elevation of the liquid above the centerline of the pump (Hz)

at maximum water level = -5.880 m

at minimum water level = 2.670 m- Friction and entrance head losses in the suction piping (Hf) = 1.34 m- Absolute vapor pressure of fluid at the pumping temperature (Hvp) = 0.32- NPSHA : at maximum water level = 14.01 m

at minimum water level = 5.46 m- So, = 5.46 m

8 Total head (Htotal) = 18.92 m9 Power of pump

m2/s

(ε/Dapplied)

(f0)

(f1)

(f2)

(f3)

(f4)(f)

(Lsuction)

(fsuction)

(Ldischarge)

(fdischarge)

(zpump)

Absolute pressure on the surface of the liquid where thepump takes suction

(Hzmax)

(Hzmin)

NPSHR should be smallest from NPSHA at minimum water level

- Density of water = 997.08- Power of pump = 29.65 kW

10 Power of pump (applied)

- Efficiency of pump = 76 %

- Power of pump (applied) = 39 kW40 kW

(ρwater) kg/m3

(P)

(ηpump)

(Papplied)

DESIGN & CALCULATION Drawing No. LH21-XXX-XX

COOLING WATER DISTRIBUTION SYSTEM Job No. X1

Date: 22-Nov-13


ENGINEERING DEPARTEMENT POSO 1 ( 4X 45 MW Checked: AQQ Sign :

A1 Data1 Cooling Water Required

No System Water cuonsumption

1 Generator Trush Bearing 0.0208

2 Generator Upper Guide Bearing 0.0097

3 Generator Air Cooler 0.1153

4 Generator Lower Guida Bearing 0.0111

5 Turbin Guide Bearing 0.0025

6 Turbin Main Shaft 0.0013

2 Fluid properties

- Fluid = Water - Temperature of fluid = 25 °C

3 Pipe properties- Material (ε) = Weld Steel

- Nominal roughness = 0.000045 m 0.045 mm- Head ( h ) = 44.4444444444 m

- Nominal Roughness Material- Weld steel/ Cast iron = 0.045 mm

- Data Density Of Water = 995.7 Kg/m³

4 Local Gravity (g) = 9.779

A2 Calculation1 Static Head (Hs) = 44.44 m

2 Total Water Consumption

- (for 1 unit turbine) = 0.16077777778

- (for 2 unit turbine) = 0.32155555556

- (for 3 unit turbine) = 0.48233333333

- (for 4 unit turbine) = 0.64311111111

3 VMax ( Free Flow) = 26.5353347348

4 Dimension of Header pipe discharge JIS SCH 40

- Design Discharge ( Q ) = 0.643111111111- Velocity of flow discharge (V') = 2 m/s

- Cross-Sect. Area (A') = 0.321555555556

- Diameter of pipe discharge (D') = 0.640 m 639.8572099794 mm

- Applied nominal diameter = 0.57 m 574.60 mm- Required Area = 0.25931111028 m2 24" ( 600 mm )

- Applied Velocity of flow discharge = 2.48007542142 m/s

m/s2

m/s2

m/s2

m/s2

m/s2

m/s2

(Tfluid)

(Ld)

m/s2

(Q1) m3

(Q1) m3

(Q1) m3

(Q1) m3

m/s

m3/s

m2

(Dapplied)

(Vapplied)

A = Q/VD=√((4.Q)/(π.V))

V= Q/A

V max 〖 :0.9√2.g.h〗

J46

Water Flow Must be Adjusted

5 'Applied Debit and Velocity in Main Header

- Header A

Volume Flow rate (QA) = 0.64311111111 m3/sCross sect Area ( AA) = 0.25931111028 m2Velocity of flow discharge (VA ) = 2.48007542142 m/s

- Header to unit 2

Volume Flow rate (Q2) = 0.1608Cross sect Area ( A2) = 0.0722 m2 303.2 12" ( 300 mm)Velocity of flow discharge (V2 ) = 2.2268 m/s 574.6 24" ( 600 mm )Volume ( Qc ) = 0.1608Cross sect Area ( Ac) = 0.2593 m2Velocity of flow discharge (Vc ) = 0.6200 m/s

- Header to unit 1

Volume Flow rate (Q1) = 0.1608Cross sect Area ( A1) = 0.0722 m2 303.2 12" ( 300 mm)Velocity of flow discharge (V1 ) = 2.2268 m/s 477.8 20" ( 500 mm )Volume ( Qb ) = 0.3216Cross sect Area ( Ab) = 0.1793 m2Velocity of flow discharge (Vb ) = 1.7934 m/s

Header Unit 3

Volume Flow rate (Q3) = 0.1608Cross sect Area ( A3) = 0.0722 m2 303.2 12" ( 300 mm)Velocity of flow discharge (V3 ) = 2.2268 m/s 574.6 24" ( 600 mm )Volume ( Qd) = 0.1608Cross sect Area ( Ad) = 0.2593 m2Velocity of flow discharge (Vd ) = 0.6200 m/s

- Header to unit 4

Volume Flow rate (Q1) = 0.1608Cross sect Area ( A1) = 0.0722 m2 303.2 12" ( 300 mm)Velocity of flow discharge (V1 ) = 2.2268 m/s 477.8 20" ( 500 mm )Volume ( Qb ) = 0.2330Cross sect Area ( Ab) = 0.1793 m2Velocity of flow discharge (Vb ) = 1.2994 m/s

m3/s

m3/s

m3/s

m3/s

m3/s

m3/s

m3/s

m3/s

6 Friction Losses Main header

- Length Pipe Cooling supplay to Trush bearing =- Kinematic Velocity (ν) =

- Reynolds number (Re) =

- Regime of Flow =

- Relative rougness =- Friction Factor

From the swamee-jain =


=

=

=

=So, friction factor =

- Friction Loss in Discharge Pipe (Hfd) =

Brancing pipe 600 to 300Firction Losses Main Pipe DN 600

No calculation Unit1 Length 10 m

2 velocity 8.9181E-073 Re 399481.08 Turbulen4 (ε/Dapplied) 7.83153498086E-055 0.01462438441886 0.014614699074917 0.012531644707228 0.014786453607519 0.01460269858696

10 (f) 0.0146026985869611 (Hfd) 0.0050 m

No calculation Unit1 Length 10 m 2 velocity 8.9181E-073 Re 960828.08 Turbulen4 (ε/Dapplied) 9.4181665969E-055 0.013467265872396 0.013401663663357 0.012572445367098 0.013445651150219 0.01340267979723

10 (f) 0.0134026797972311 (Hfd) 0.05 m

Firction Losses Main Pipe DN 300No Calculation Unit1 Length 12 m 2 velocity 8.9181E-073 Re 757064.08 Turbulen4 (ε/Dapplied) 0.000148416886545 0.014458611123496 0.014380396010547 0.014383708996288 0.012539050249019 0.01446956526076

10 (f) 0.0144695652607611 (Hfd) 0.145 m

Fric Loses 0.019 bar

(ε/Dapplied)

(f0)

(f1)

(f2)

(f3)

(f4)(f)

m2/s

(f0)(f1)(f2)(f3)(f4)

m2/s

(f0)(f1)(f2)(f3)(f4)

m2/s

(f0)(f1)(f2)(f3)(f4)

v=(83.9192T^2+20705.5T+55173)^(-1)Re=(V_applied∗D_applied)/v

f^′=0.25[log((ε∕D_applied )/3.7+5.74/〖 Re〗^0.9 )]" " ^(-2)

1/√f=-2log((ε∕D_applied )/3.7+2.51/(Re√f))

7 Head losses valve and fittingPIPE 600 & 500

No Fitting type Quantity K factor Head Losses ( m)1 BALL VALVE FULL BORE 1 0.1 0.001965455221304192 TROUGHT TEE 4 2.32 0.1823942445370283 REDUCER 2 0.2 0.007861820885216744 - 0 0 05 - 0 0 06 - 0 0 07 - 0 0 0

Total 0.192221520643549

PIPE 300No Fitting type Quantity K factor Head Losses ( m)1 GATE VALVE 4 0.96 0.9735092377471682 ELBOW 90 LR 5 2.3 2.915457352628243 - 0 0 04 - 0 0 05 - 0 0 06 - 0 0 0

Total 3.88896659037541

Head losses valve and fitting ( Trush Bearing ) 0.40 barTotal Head losses ( Trush Bearing ) ( Htot ) 0.42 bar

(Hminor)

8 Applied Debit and Velocity in 1 Turbin-Generator

- Area1 (Trush bearing )Volume Flow rate (Q1 = 0.02Cross sect Area ( A1) = 0.00821941955 m2 102.3 4" ( 100 mm)Velocity of flow discharge (V1 ) = 2.53 m/s 303.2 12" ( 300 mm)Volume ( Qb ) = 0.02Cross sect Area ( Ab) = 0.07220184166 m2Velocity of flow discharge (Vb ) = 0.28854296311 m/s

- Area 2 ( Q2, A2 , V2 )( upper guide bearing )

Volume Flow rate (Q2) = 0.01Cross sect Area ( A2) = 0.00476978973 m2 77.93 3" ( 80 mm)Velocity of flow discharge (V2 ) = 2.04 m/sVolume Flow rate ( Qc) = 0.03Cross sect Area ( Ac) = 0.07220184166 m2 303.2 12" ( 300 mm)Velocity of flow discharge (Vc ) = 0.42319634589 m/s

Area 3 Q6, V6, A6( Turbin Guide Bearing )

Volume Flow rate (Q6 = Qg) = 0.003Cross sect Area ( A6) = 0.00055738891 m2 26.64 1" ( 25 mm)Velocity of flow discharge (V6 ) = 4.49 m/sCross sect Area ( Ag) = 0.07220184166 m2 303.2 12" ( 300 mm)Velocity of flow discharge (Vg ) = 0.03462515557 m/s

- Area 4 Q5, V5, A5(Shaft seal)

Volume Flow rate (Q5) = 0.0013Cross sect Area ( A5) = 0.0013 m2 40.89 1 1/2"( 40 mm)Velocity of flow discharge (V5 ) = 1.0153 m/sVolume Flow rate ( Qf) = 0.0038Cross sect Area ( Af) = 0.0722 m2 303.2 12" ( 300 mm)Velocity of flow discharge (Vf ) = 0.0531 m/s

- Area 5 Q4, V4, A4( Generator Lower Guide Bearing )

Volume Flow rate (Q4) = 0.0111Cross sect Area ( A4) = 0.0031 m2 62.71 2 1/2" ( 65 mm )Velocity of flow discharge (V4 ) = 3.5974 m/sVolume Flow rate ( Qe) = 0.0124Cross sect Area ( Ae) = 0.0722 m2 303.2 12" ( 300 mm)Velocity of flow discharge (Ve ) = 0.1724 m/s

m3/s

m3/s

m3/s

m3/s

m3/s

m3/s

m3/s

m3/s

m3/s

J285


J304


- Area 6 Q3, V3, A3( Air Coller )

Volume Flow rate (Q3) = 0.1153Cross sect Area ( A3) = 0.0323 m2 202.7 8" ( 200 mm)Velocity of flow discharge (V3 ) = 3.5723 m/sVolume Flow rate ( Qe) = 0.1184Cross sect Area ( Ae) = 0.0722 m2 303.2 12" ( 300 mm)Velocity of flow discharge (Ve ) = 1.6394 m/s

9 Friction Loss in Discharge Pipe, ( Trush bearing )



- Regime of Flow =

- Relative rougness =- Friction Factor

From the swamee-jain =


=

=

=



Percabangan Pipa 12" ( 300 mm) 4" ( 100 mm)Firction Losses Brance 12" ( 300 mm)



10 (f) 0.0126021946864311 (Hfd) 0.06 m

Firction Losses Brance Pipe 4" ( 100 mm)No calculation Unit1 Length 7 m

2 velocity 8.9181E-073 Re 290749.48 Turbulen4 (ε/Dapplied) 0.000439882697955 0.018016847701476 0.012438288984697 0.012608611831488 0.012601945587799 0.0126022041915

10 (f) 0.012602204191511 (Hfd) 0.28 m

Fric Loses 0.03 bar

10 Head losses valve and fittingPIPE 12" ( 300 mm)

No Fitting type Quantity K factor Head Losses1 GATE VALVE 1 0.24 0.07547348049808072 TROUGHT TEE 1 0.58 0.1823942445370283 - 0 0 04 - 0 0 05 - 0 0 0

Total 0.257867725035109

m3/s

m3/s

(ε/Dapplied)

(f0)

(f1)

(f2)

(f3)

(f4)(f)

m2/s

(f0)(f1)(f2)(f3)(f4)

m2/s

(f0)(f1)(f2)(f3)(f4)




J314


PIPE 4" ( 100 mm)No Fitting type Quantity K factor Head Losses1 GATE VALVE 2 0.48 0.3153260281774442 ELBOW 90 LR 2 0.92 0.6043748873401013 TROUGHT TEE 1 0.58 0.1905094753572064 REDUCER 1 0.1 0.03284646126848385 - 0 0 06 - 0 0 0

Total 1.14305685214323

Head losses valve and fitting ( Trush Bearing ) 0.14 barTotal Head losses ( Trush Bearing ) ( Htot ) 0.17 bar

11 Friction Loss in Discharge Pipe, ( upper Guide Bearing )



- Regime of Flow =

- Relative rougness =

- Friction Factor =From the swamee-jain


=

=

=



Percabangan Pipa 12" ( 300 mm) 3" ( 80 mm)Firction Losses Brance DN 300

No calculation Unit1 Length 7.5 m


10 (f) 0.0126021946864311 (Hfd) 0.05 m

Firction Losses Brance 3" ( 80 mm)No calculation Unit1 Length 6 m


10 (f) 0.0126013738146511 (Hfd) 0.21 m

Fric Loses 0.02 bar

(Hminor)

(ε/Dapplied)

(f0)

(f1)

(f2)

(f3)

(f4)(f)

m2/s

(f0)(f1)(f2)(f3)(f4)

m2/s

(f0)(f1)(f2)(f3)(f4)




12 Head losses valve and fitting

PIPE 12" ( 300 mm)No Fitting type Quantity K factor Head Losses1 GATE VALVE 1 0.24 0.07547348049808072 TROUGHT TEE 1 0.58 0.1823942445370283 - 0 0 04 - 0 0 05 - 0 0 0

Total 0.257867725035109

PIPE 3" ( 80 mm)No Fitting type Quantity K factor Head Losses1 GATE VALVE 2 0.48 0.2039187744252952 ELBOW 90 LR 1 0.46 0.09771107941212053 TROUGHT TEE 2 1.16 0.492803704861134 REDUCER 1 0.1 0.02124153900263495 - 0 0 06 - 0 0 0

Total 0.81567509770118

Head losses valve and fitting ( Upper Bearing ) 0.10 barTotal Head losses ( Upper Bearing ) ( Htot ) 0.12 bar

13 Friction Loss in Discharge Pipe, ( Air Coller )



- Regime of Flow =- Relative rougness (ε/Dapplied) =- Friction Factor (f0) =

From the swamee-jain

From Colebrook-white iteration(f1) =(f2) =(f3) =(f4) =

So, friction factor (f) =


(Hminor)




Brancing pipe 12" ( 300 mm) 8" ( 200 mm)

Brance 12" ( 300 mm)No calculation Unit1 Length 8 m

2 velocity 8.91814038937E-073 Re 1597924 Turbulen4 (ε/Dapplied) 7.83153498086E-055 0.012671020092746 0.012599533562857 0.012608 0.012609 0.01260

10 (f) 0.0126011 (Hfd) 0.05518 m

Brance 8" ( 200 mm)No calculation Unit1 Length 4 m


10 (f) 0.0126011 (Hfd) 0.16225 m



PIPE 300No Fitting type Quantity K factor Head Losses

1 GATE VALVE 1 0.24 0.07547348052 TROUGHT TEE 1 0.58 0.182394244543 - 0 0 04 - 0 0 05 - 0 0 0

Total 0.25786772504


1 GATE VALVE 2 0.48 0.626355690262 ELBOW 90 LR 2 0.92 1.2005150733 TROUGHT TEE 1 0.584 REDUCER 1 0.15 - 0 06 - 0 0 0

Total 1.82687076327

Head losses valve and fitting ( Air coller ) (Hminor) 0.20300032633 barTotal Head losses ( Air coller ) ( Htot ) 0.2241725882 bar

15 Friction Loss in Discharge Pipe, ( Lower Guide Bearing )








m2/s

(f0)(f1)(f2)(f3)(f4)

m2/s

(f0)(f1)(f2)(f3)(f4)




Brancing pipe 12" ( 300 mm) 2 1/2" ( 65 mm )Firction Losses Brance pipe 12" ( 300 mm)



10 (f) 0.0126011 (Hfd) 0.06897 m

Firction Losses Brance 2 1/2" ( 65 mm )No calculation Unit1 Length 6 m


10 (f) 0.0126011 (Hfd) 0.79780 m



PIPE 12" ( 300 mm)No Fitting type Quantity K factor Head Losses


Total 0.25786772504

PIPE 2 1/2" ( 65 mm )No Fitting type Quantity K factor Head Losses

1 BALL VALVE FULL BORE 2 0.2 0.264667957842 ELBOW 90 LR 2 0.92 1.217472606083 TROUGHT TEE 1 0.58 0.383768538874 REDUCER 1 0.1 0.066166989465 - 1 0 06 - 0 0 0

Total ( m ) 1.93207609226

Head losses valve and fitting ( lower Gude Bearing ) (Hminor)Total Head losses ( lower Guide Bearing ) ( Htot ) 0.21324464054 bar

0.29764630132 bar

17 Friction Loss in Discharge Pipe, ( Turbin Guide Bearing )








m2/s

(f0)(f1)(f2)(f3)(f4)

m2/s

(f0)(f1)(f2)(f3)(f4)




Brancing pipe Firction Losses Brance pipe 12" ( 300 mm)



10 (f) 0.0126021946864311 (Hfd) 0.09015139402904 m

Firction Losses Brance Pipe 1" ( 25 mm)No calculation Unit1 Length 9 m


10 (f) 0.0126017699775511 (Hfd) 0.00835370853213 m Fric Loses 0.009591883144 bar




Total 0.25786772504


1 BALL VALVE FULL BORE 2 0.2 0.41142 TROUGHT TEE 1 0.58 0.59653 ELBOW 90 LR 2 0.92 1.892494192364 REDUCER 1 0.1 0.102852945246 - 0 0 05 - 0 0 0

Total 3.0033

Head losses valve and fitting\ (Hminor) 0.31755509591 barTotal Head losses ( Htot ) 0.32714697905 bar

19 Friction Loss in Discharge Pipe, ( Turbin Main Shaft Seal )








m2/s

(f0)(f1)(f2)(f3)(f4)

m2/s

(f0)(f1)(f2)(f3)(f4)




Brancing pipe 300 to 25Firction Losses Main Pipe DN 300



10 (f) 0.0126021946864311 (Hfd) 0.09015139402904 m

Firction Losses Main Pipe DN40No calculation Unit1 Length 9 m


10 (f) 0.0126017532963911 (Hfd) 0.00028656574868 m Fric Loses 0.0088063 bar



1 GATE VALVE 2 0.2 0.125789134162 TROUGHT TEE 1 0.58 0.182394244543 - 2 0.92 0.578630017154 - 1 0 05 - 0 0 0

Total 0.88681339585


1 BALL VALVE FULL BORE 2 0.2 0.021082 ELBOW 90 LR 2 0.92 0.09703 TROUGHT TEE 1 0.58 0.03064 STRAINER 1 0.6 0.03165 - 0 0 0.00006 - 0 0 0

Total ( m ) 0.18026388811

Head losses valve and fitting (Hminor) 0.104 barTotal Head losses ( Htot ) 0.112712445 bar

21 Total Head losses in Turbin :

No Losses Head Losses Pressure losses ( bar )1 Main Header 4 Turbin 4.27749 0.422 Generator thrust Bearing 1.739 0.1693 Generator Upper Guide Bearing 1.331 0.1254 Generator Air Cooler 3.057 0.2985 Lower Guide Bearing 3.057 0.2986 Turbin Guide Bearing 3.360 0.3277 Turbin Main shaft seal 1.158 0.113

Total Losses 1.746

22 Applied Pressure

Where ; P = Pressure Pascal

r = Density

g = Gravity

Turbine - GeneratorTotal Head Loss Velocity El. Head Tank Applied Pressure

(m) (m/s) (m) (Pascal) (bar)

1. Generator Thrust Bearing 6.0168 2.5346 34.92 278287.93424 2.7829

2. Generator Upper Guide Bearing 5.6089 2.0383 35.47 288746.28914 2.8875

3. Generator Air Cooler 7.3342 3.5723 38.41 296288.93062 2.9629

4. Generator Lower Guide Bearing 7.3342 3.5974 39.76 309344.74461 3.0934

5. Turbine Guide Bearing 7.6372 4.4852 43.05 334858.60491 3.3486

6. Turbine Main Shaft Seal 5.4350 1.0153 44.44 379339.11449 3.7934

m2/s

(f0)(f1)(f2)(f3)(f4)

m2/s

(f0)(f1)(f2)(f3)(f4)

kg/m3

m/s2P=(H−

v22 .g

). ρ .g

CALCULATION COOLING WATER SYSTEM FROM HEAD TANK&

PUMP SELECTION

1 MASUKKAN DATA KEBUTUHAN TURBIN ( 1 UNIT ):

INPUT DATA :A 75 Thrust Bearing CoolerB 35 Upper Guide Bearing CoolerC 415 Air CoolerD 40 Lower Guide Bearing CoolerE 9 Turbine Guide Bearing CoolerF 4.8 Shaft Seal Lubricating Cooler

-> 579 TOTAL KEBUTUHAN 1 UNIT-> 4 TOTAL UNIT YANG DI PASOK-> 2315.2 TOTAL KEBUTUHAN UNTUK 4 UNIT

TEKANAN OPERASI COLLING WATER UNTUK TURBIN-> MINIMUM ( BAR ) -> MAKSIMUM ( BAR )

2 FLUIDA YANG DI GUNAKANA FlUIDA : TEMPERATURE °C DENSITY 997.1 Kg/m³

Ref : Fluid Mechanic, 4th Edition

3 PIPE PROPERTIESPILIH MATERIAL PIPA 0.045 mm ( Roughness ε )

Ref : Fluid Mechanic, 4th Edition

4 GAYA GRAVITASIWILAYAH PROYEK GRAVITASI WILAYAH 9.779499854

5 KEMAMPUAN TANK UNTUK MEMASOK AIR SAAT DARURAT

LAMA YANG DIINGINKAN Kapasitas tank 1355

6 DIMENSI PIPA YANG DI PAKAI

DIAMETER PIPE

PIPE SCH

DIAMETER PIPA YANG DI BUTUHKAN 584.1070458134 mm 0.58 mINSIDE DIAMETER PIPA YANG DI PILIH 574.60 mm 0.575 m

( **syarat flow pada pipa yang dipilih harus 2-3 m/s) flow 2.48 m/s

7 FITTING AND VALVEJUMLAH K VALUE

A 0.48

B 0.58 TOTAL K VALUE

C 2.3 5.34

D 1.38

E 0.6

F 02.45

G 0

m³/hm³/hm³/hm³/hm³/hm³/h

m³/h

m³/h

m/s²

m³ ( MINIMUM )

B8

aan5942: INPUT DATA KEBUTUHAN TRUSH BEARING

B9

aan5942: INPUT DATA KEBUTUHAN GUIDE BEARING

B10

aan5942: INPUT DATA KEBUTUHAN AIR COLLER

B11

aan5942: INPUT DATA KEBUTUHAN LOWER GUIDE BEARING

B12

aan5942: INPUT DATA KEBUTUHAN TURBIN GUIDE BEARING

B13

aan5942: INPUT DATA KEBUTUHAN SHAFT SEAL

B16

aan5942: MASUKKAN DATA JUMLAH TURBIN ANDA

8 POMPA452.120 m. above msl Elevasi pompa yang akan di pasang465.120 m. above msl Elevasi oultet pompa458.000 m. above msl Masukkan water level di tailrace449.450 m. above msl Masukkan water level di suction pompa

33.213 m PANJANG PIPA DISCARGE

DIAMETER PIPA ID pipa 303.2 mm

K VALUEA 0.48

B 0.92

C 1.48

D 2.3

E 0.1

LOSSES PADA VALVE DAN FITTING (SISI KELUAR POMPA )K VALUE

A 0.48

B 2.3

C 3.48

D 1.16

E 0.1

F 0

9 COOLING DISTRIBUTION

Pipa Main header 1,2,3,4

ID pipa 1 477.8 mmID pipa 2 574.6 mmID pipa 3 574.6 mmID pipa 4 477.8 mm

Pipa Brance 5

ID Pipa 5 /Brance 303.2 mm

LOSSES PADA VALVE DAN FITTING (SISI MASUK POMPA )

1

23

4

5

B64

Input Data Elevasi

B65

Insert Data Elevasi

B66

Input Data Elevasi

B67

Input Data Elevasi

B69

aan5942: Masukkan data panjang pipa discarge ( aktual )

Perencanaan panjang pipa Header5

10 m Panjang Perencanaan Pipa Header 1 24" ( 600 mm ) 510 m Panjang Perencanaan Pipa Header 2 20" ( 500 mm ) 512 m Panjang Pipa Brance 5

Fitting dan Valve di Pipa Header 24" ( 600 mm ) 20" ( 500 mm )K VALUE

A 0.1

B 2.32

C 0.2

D 0

E 0

F 0

G 0

Fitting pada pipa brance 12" ( 300 mm)

A 0.96

B 2.3

C 0

D 0

E 0

F 0

A. Distribusi ke bearing 1102.3 mm

277.93 mm

3202.7 mm

4

62.71 mm

526.64 mm

640.89 mm

Area 1 ( Trush Bearing )

Area 2 ( Upper Bearing )

Area 3 ( Air Cooler )

Area 4 ( Lower Guide Bearing )

Area 5 ( Turbin Guide Bearing )

Area 6 ( Shaft Seal )

B130

aan5942: Masukkan data panjang pipa header

B131

aan5942: Masukkan data panjang pipa header

B132

aan5942: Masukkan data panjang brance pada pipa header

B. Fitting dan Valve di Trush Bearing Pada Brance 20" ( 500 mm ) K VALUE

A 0.24

B 0.58

C 00.82

D 0

E 0

Pada Brance 4" ( 100 mm) K VALUE

A 0.48

B 0.922.08

C 0.58

D 0.1

E 0

F 0

B. Fitting dan Valve di Trush Bearing


A 0.48

B 0.46 2.2

C 1.16

D 0.1

E 0

F 0

B. Fitting dan Valve di Air Coller


A 0.48

B 0.922.08

C 0.58

D 0.1

E 0

F 0

B. Fitting dan Valve di Lower Bearing

Pada Brance 2 1/2" ( 65 mm ) K VALUE

A 0.2

B 0.921.8

C 0.58

D 0.1

E 0

F 0

B. Fitting dan Valve di Turbin Guide Bearing


A 0.2

B 0.581.8

C 0.92

D 0.1

E 0

F 0

B. Fitting dan Valve di Shaft Seal shaft seal

Pada Brance 1 1/2"( 40 mm) K VALUE

A 0.2

B 0.922.3

C 0.58

D 0.6

E 0

F 0



Date: 22-Nov-13



1 Cooling water RequiredNo System Water consumption

1 Generator Trush Bearing 0.0208

2 Generator Upper Guide Bearing 0.0097

3 Generator Air Cooler 0.1153

4 Generator Lower Guida Bearing 0.0111

5 Turbin Guide Bearing 0.0025

6 Turbin Main Shaft 0.0013

TOTAL WATER CONSUMPTION 0.16082 Fluid Data

No Fluid Unsur Kimia Density ( Kg/m³ )1 Water H2O 25 995.7

3 Pipe PropertiesNo Material

1 Cast Iron, seamless pipe (A106 Gr.B) 0.045

4 Local GravityNo Project Local Gravity

1 POSO 1 ( 4X 35 MW) 9.779499854

5 Water StorageTankNo Volume Tank Elevation of water level Lasting Time ( Hours )

1 1355 44.4444444444444 0.45

6 Pipe Data

No Pipe Lengh inner Diameter Friction losses( m ) mm m

1 24" ( 600 mm ) 700 574.60 4.82792 20" ( 500 mm ) 10 477.8 0.04613 12" ( 300 mm) 8 303.2 0.05524 4" ( 100 mm) 7 102.3 0.28325 3" ( 80 mm) 6 77.93 0.20617 1" ( 25 mm) 9 26.64 0.00848 1 1/2"( 40 mm) 9 40.89 0.00039 2 1/2" ( 65 mm ) 6 62.71 0.7978

10 8" ( 200 mm) 4 202.7 0.1623Total Losses 6.3873

0.6220 bar7 Fitting and Valve

No Pipe Fitting and Valve Quantity K factor Total Losses ( m )

1 24" ( 600 mm )

Pipe Entrance (Re-Entrant) 1 0.8

1.93

GATE VALVE 2 0.48TROUGHT TEE 1 0.58SWING CEK VALVE 1 2.3ELBOW 90 LR 3 1.38STRAINER 1 0.6- 0 0- 0 0

2 12" ( 300 mm)

GATE VALVE 4 0.96

3.89

ELBOW 90 LR 5 2.3- 0 0- 0 0- 0 0- 0 0

3 4" ( 100 mm)

GATE VALVE 2 0.48

1.14

ELBOW 90 LR 2 0.92TROUGHT TEE 1 0.58REDUCER 1 0.1- 0 0- 0 0

4 3" ( 80 mm)

GATE VALVE 2 0.48

0.81567509770118


5 1" ( 25 mm)

BALL VALVE FULL BORE 2 0.2

3.00330600092195

TROUGHT TEE 1 0.58ELBOW 90 LR 2 0.92REDUCER 1 0.1- 0 0- 0 0

6 1 1/2"( 40 mm)


0.18026388810679

ELBOW 90 LR 2 0.92TROUGHT TEE 1 0.58STRAINER 1 0.6- 0 0- 0 0

7 2 1/2" ( 65 mm )


1.93207609226152


8 8" ( 200 mm)

GATE VALVE 2 0.48

1.82687076326676


Total 14.721.4334573641 BAR

m/s2

m/s2

m/s2

m/s2

m/s2

m/s2

m/s2

Temperatur ( ⁰C)

Roughness (ε) mm



Date: 22-Nov-13



8 Pump SelectionElevation of pump installation

- Elevation of pump installation = EL. 452.120 m. above msl- Outlet of pump = EL. 465.120 m. above msl- Maximum water level (based on tailrace water level) = EL. 458.000 m. above msl- Minimum water level = EL. 449.450 m. above msl- Static Head 15.67 msl

Pipe Data

No Pipe Lengh inner Diameter Friction losses( m ) mm m

1 12" ( 300 mm) 33.213 303.20 0.1300

Total Losses 0.1300Fitting and Valve in Pump system

No Pipe Fitting and Valve Quantity K factor Total Losses ( m )

1 Section Pump

GATE VALVE 2 0.48

1.34ELBOW 90 LR 2 0.92BRANCEH TEE 2 1.48SWING CEK VALVE 1 2.3REDUCER 1 0.1

2 Discarge Pumpa

GATE VALVE 2 0.48

1.91

SWING CEK VALVE 1 2.3ELBOW 90 SR 4 3.48TROUGHT TEE 2 1.16REDUCER 1 0.1- 0 0

Total Losses 3.25

Power of Pump

No Total Head ( m ) Power Of Pump ( KW )Efisiensi

Minimum Power of pump ( KW )( % )

1 18.92 29.65 76 39

9 Applied Pressure

Turbine - GeneratorTotal Head Loss Velocity El. Head Tank Applied Pressure

(m) (m/s) (m) (Pascal) (bar)

1. Generator Thrust Bearing 6.0168 2.5346 34.92 278287.934 2.7829

2. Generator Upper Guide Bearing 5.6089 2.0383 35.47 288746.289 2.8875

3. Generator Air Cooler 7.3342 3.5723 38.41 296288.931 2.9629

4. Generator Lower Guide Bearing 7.3342 3.5974 39.76 309344.745 3.0934

5. Turbine Guide Bearing 7.6372 4.4852 43.05 334858.605 3.3486

6. Turbine Main Shaft Seal 5.4350 1.0153 44.44 379339.114 3.7934

J111

Input Data Elevasi

J112

Insert Data Elevasi

J113

Input Data Elevasi

J114

Input Data Elevasi

belajar.xls

Documents